Ben Harper got tattooed in New-Zealand, the land of "Ta Moko", (Maori traditional tattoo) by the tattooist Gordon Hatfield. You can find his address on this site: http://www.tamoko.org.nz/artists/uruora/list.html As
well as the address of another famous Maori tattooist, Te Rangitu Netana, who was the one who tattooed Robbie Williams.